Fusion-io's original ioDrive was stupid fast, but the next generation makes even that look…
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Unlike other SSDs, the X1 utilizes two types of memory—4GB DRAM and 4GB NAND aligned on a PCIe card. Because RAM can be volatile, the NAND kicks in and safely backs up the information. According to a PC Perspective review, the drive features "single sector IOPS (input/output operations per second) unmatched by any other device available" and has the benefit of a IOPS cost that is about 1/5 of the io-Drive.

So, essentially you are getting a lot of bang for your buck here—but at the end of the day you are still talking $1495 for a drive with 4GB capacity. Obviously, that means the majority of us will have to wait a while longer to experience this kind of performance. [DDRdrive and CNET and PC Perspective]